suppress WCMP2 language property (#865)

* suppress WCMP2 language property

* Update discovery.py

* remove whitespace to make flake8 happy !

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Co-authored-by: Maaike <mlimper@wmo.int>

Author: tomkralidis

wis2box-management/wis2box/metadata/discovery.py

@@ -250,6 +250,9 @@ def publish_discovery_metadata(metadata: Union[dict, str]):
             record_mcf = dm.parse_record(metadata)
             record = dm.generate(record_mcf)
 
+        if 'language' in record['properties']:
+            _ = record['properties'].pop('language')
+
         distribution_links = dm.get_distribution_links(record, format_='wcmp2')
         # update links, do not extend or we get duplicates
         record['links'] = distribution_links